If you are at all handy check all of the guts of the toilet. That is, check the parts inside the tank as I mentioned above. If you still can't find any problems you should probably call a plumber. If you have two toilets back to back it sounds like you have a clog between the toilet and the main stack.
Scientists in Barcelona claim to have shown for the first time that unborn babies can hear in the womb at just 16 weeks gestation. They recruited pregnant women from 14 to 39 weeks' pregnant for the study, playing music both via headphones around the bump, and via a device inserted into the vagina.
1 After 9 months, babies can understand a few basic words like no and bye-bye.. 2  They also may begin to use a wider range of consonant sounds and tones of voice. 3  Baby talk at 12 months. 4  Most babies say a few simple words like mama and dadda by the end of 12 months -- and now know what they're saying.